Finding the Fourth Proportional to 13,101.14, 18,079.71 and 7,132.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,101.14 : 18,079.71 = 7,132.86 : x
2. Step 2: Convert to fraction form
   13,101.14/18,079.71 = 7,132.86/x
3. Step 3: Cross multiply
   13,101.14x = 18,079.71 × 7,132.86
4. Step 4: Simplify right side
   13,101.14x = 128,960,013.52
5. Step 5: Solve for x
   x = 128,960,013.52/13,101.14
6. Step 6: Final answer
   x = 9,843.42